Hold one note for 2-3 seconds before comparing shapes.
vocal spectrum lab
Vocal Spectrum Analyzer
Changing ah, eh, or ee can move F1/F2 a lot.
Moving closer or off-axis can change H1 and upper harmonics.
Spectrum
H1-H5 harmonics and F1-F3 formant candidates
Idle
Waiting for signalStart the microphone. Press Space to freeze the graph.
Capture
Save the visible graph as an image and measurement
Capture sounds you want to compare. Raw voice audio is not saved.
Start the microphone, then capture the moment you want to compare.
H1, H3, H5
H means harmonic. H1 is the main pitch; H3 and H5 help you compare clarity and closure tendencies.
F1, F2, F3
F means formant candidate. Vowels move these resonance peaks and can make certain harmonics stand out.
Local processing
Your microphone audio is analyzed in the browser. Raw voice audio is not uploaded to a server.
Start here
New to the tool? Read the vocal spectrum analyzer guide, then try one comfortable sustained note.
High notes and mix
Use the high-note practice guide and mix voice analysis guide to compare passaggio changes safely.
Formants and vowels
The formant analyzer guide and F1/F2/F3 article explain how vowel changes can move resonance candidates.